National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Excessive Rainfall and Severe Thunderstorms; Typhoon Watch for Guam/CNMI

Heavy to excessive rainfall will continue today from the Texas Big Bend region into southern Oklahoma. Locally considerable flash and urban flooding is possible, and river flooding will continue in central Oklahoma. Scattered severe thunderstorms are possible in parts of the Mid-Atlantic Friday. A Typhoon Watch has been issued for Guam and CNMI. Read More >

Current conditions at

Renton Municipal Airport (KRNT)

Lat: 47.49509°NLon: 122.21437°WElev: 23.0ft.

Clear

66°F

19°C

Humidity 59%
Wind Speed NW 5 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 15 Oct 04:35 PM PDT
Extended Forecast for

Newcastle WA

  • Tonight

    Tonight: Mostly clear, with a low around 53. Calm wind becoming east southeast around 5 mph.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after 4am. Increasing clouds, with a low around 56. Light south southwest wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Partly Cloudy
    then Rain
    Likely

  • Saturday

    Saturday: Rain likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 63. South southwest wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Rain Likely
    then Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. Northeast wind 3 to 5 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy, with a high near 59.

    High: 59 °F

    Cloudy

  • Monday Night

    Monday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 53. Calm wind becoming east southeast around 5 mph.
Friday
Mostly sunny, with a high near 75. Light and variable wind.
Friday Night
Rain likely, mainly after 4am. Increasing clouds, with a low around 56. Light south southwest wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 63. South southwest wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 45. Northeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Cloudy, with a high near 59.
Monday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Thursday
A chance of rain. Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newcastle WA
 47.56°N 122.18°W (Elev. 207 ft)
Last Update:
1:20 pm PDT Oct 15, 2026
Forecast Valid:
4pm PDT Oct 15, 2026-6pm PDT Oct 22, 2026
 
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Additional Resources

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Chance of Precipitation